Am I misunderstanding your post?: you're implying that HYPSM increase their matriculation by ten times? These "elite" colleges,—one of which I've attended for graduate school,—have serious issues already with becoming degree mills; degrees have depreciated enormously in value over the last several decades: consider the collapse in being able to find a tenure track research position, even from one of these colleges. If we wanted elite colleges to provide the benefits that they are supposed to; then we would, if anything, want to reduce matriculation.
Stanford,—and I would hazard a guess many other HYPSM schools,—are already minting out too many students; this is especially true when it comes to non-PHD masters degrees, which are essentially an unbecoming cash cow for departments. Actual "quality of education" mostly comes from a low staff/student ratio and direct access of students to elite researchers: this difference in education mostly takes the form of better research labs to work in, with some spillover into office hours; increasing matriculation would only lead to more auditorium-sized classes that are run by lecturers or postdocs—these classes are essentially at the same level as trudging through online material.
Your proposed "solution" would have a Procrustean effect: I can't speak for Chinese or Indian universities, but while schools like UC Berkeley, UT Austin, University of Michigan, et seq... have good reputations, they have a noticeably lower reputation than the ivy leagues and certain private colleges like Stanford, MIT, and Caltech—and a worse reputation for being degree mills.
If you think that Stanford having 180,000 students matriculated will give everyone a quality education, then I think that you fundamentally misunderstand the markers that make an in-person education higher quality. The only benefit that would come of it would be popping the degree bubble and prematurely ending the current moribund trajectory that universities are on; where they are already treating degrees as if they were artificial-scarcity NFTs, rather than providing the actual scarcity that is access to,—and direct training from,—high-level researchers.
nablaxcroissant
today at 9:42 PM
Pretty much agree but may I also add that Santa Clara County would probably not allow Stanford to increase its student body by any real sizeable amount due to restrictions in traffic, building, parking, etc, etc.